Double-stroke pumping-jack.



APPLICATION FILED JULY 1, 1912.

Patented Mar. 16, 1915.

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THE NORRIS PETERS Cll. PHOTO-LITHO WASHINGTON, D C.

W H. WINTERBORNE. DOUBLE STROKE PUMPING JACK.

APPLICATION FILED JULY 1, 1912.

1,132,538. Patented Mar. 16,1915.

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THE NORRIS PETERS CO.. PHOT0-LITHO.. WASHINGTON, D. C.

proved guides and crossheads to keep the 1 [Referring to th WILLIAM-H. WINTERBORNE," or sA v ANTONIO, Texas, ass-remit r salt Antonio MACHINE & SUPPLY 00., or sen ANTONIO, TEXAS, A conroaarxoiv or TEXAS.

DOUBLE-STROKE PUMPING-JACK.

Application filed July 1, 1912. SerialNo. mm.

To all whom it may concern: I

Be it known that I, WI LIAM H. WINTER- HORNE, a citizen of the United States, and resident of San Antonio, county of BeXar,

State of TeXas,hav.e invented a certain new and useful Improvement in Double-Stroke Pumping-Jacks, 'of which the following is a specification. I v i This invention relates to pumps generally and more particularly to a double stroke pumping jack in which two pistons workingv in the same cylinder are arranged to discharge a steady stream of water therefrom. Tn pumping mechanism of thischara cter it has been the general practice to mount the pump operating. means, such as crossheads,

guides, etc., beneath the base frame. Such a construction is objectionable'because it is impossible to remove the pump rods, pis-i tons, pipe and cylinder without moving the jack from its foundation. .One of the objects of the present inventionis to provide an improved'simple and inexpensive construction whereby the pipe cylinder and pistons 'may be conveniently and readily removed for repairs or clean-' ing. I v

Another object is to minimize the power required to operate the pump by more perf ectly balancing the parts, arranging imrods in alinementat all times and. connecting such operating means thereto as to provideapproximately a straight line lift. Other objects and the. novel features of the invention will be apparent from the following description taken in connection with drawings, in which, 7 I i Figure 1 is a side elevation'ofthe pumping jack, parts beingbroken away; Fig. 2 is a planview of the same, .partsbeing broken away, and Fig. 3 is an end elevationof the same, parts being broken away and shown in' section.

vided a base frame'preferably of cast iron comprising iopp'ositeside members 16 and 11 integral with, and mounted on a bottom member 12. The bottom member 12 has an opening 13 therein which is approximately centrally located. Centrally'in line with the opening 13'and depending from the bottom 12 there is a pump cylinder 14 having flanges 15 atits upper end resting on the bottom of the base frame. Thefpump cylas'ithe gears 30, 30. I

drawing, there is. proinder is connected to T-head 16 oneof the openings of which discharges into'the outlet pipe 17 which passes throughan opening 18 in the end of the frame.

Two plungers 19 and 20 provided .with

the-necessary valves operate within the cyl-- inder 14. i The plunger 20 hasa solid piston rod 21 connected thereto which :passes through a tubular piston rod 22 connected to the, plunger 19. The two piston rods extend upwardly'above the base frame and Specification of Letters Patent. Patented, Mar. 16,1915.

bearings for the shafts 24, and 26, which H shafts arei mounted in; the side frame meme bers 10 and '11 and eXtendaslight distance beyond the same. The shafts24and26 are at opposite ends of the frame members and the shaft 25 is parallel toand intermediate -the other shafts. [Shaft 24 has mounted thereon the pulleys27'. and 28 which pulleys are located-between the frame members and on theouter ends ofthe shaft are keyed the. operating pinions 29, 29. v. The shaft25' has the gears 30, 30 keyed tothe outer ends of. v

the same and the drive pinions 29, 29, mesh, 7

with said gears. 'Ea'chof thegears 30, 30, has spokes" which] are provided with the crank pin bearing sleeves31,.p32 and 33, located atediiferent distances from the hub at. the center, whereby variablestrokes of the pitmenand pump rods connected thereto may beobtained.

The'gears 34, 34, keyedtothe opposite ends of the shaft 26 mesh with and are operated by the'gears 30, 3 0. The gears 34', 34

construction;

are substantially of the same In order that'thefstroke'of the pump may be thesame, thepitmen for both rods are connected to pins in corresponding and rising vertically therefrom; are guide 'rods35, 35. The guide rods 35, 35, are opi posite the opening 13 in the bottom of the frame and constitute guiding means; for crossheads 3 6 and 37 connectedrespectively to; the outer ends ofthe pump rods 21 and 22. The crossheads 36 and 37 are of substantially the same construction. However, the crosshead 37 is provided with a stuffing box 38 to prevent leakage between the two piston rods 21, 22. The crosshead 37 is provided with bearing pins 39 at its ends and by means of pitmen 40 pivoted on bearing pins 39 the crossheads are connected to crank pins 41 in bearing sleeves 31 on the gears 30. In a similar manner pitmen 42 depending from bearing pins 43 at opposite ends of the crosshead 36 connect the said crosshead to crank pins 44 in bearing sleeves 31 on the gears 34, 34. The rotation of the gears 30, 30, and the gears 34, 34, by the pinions 29, 29, will reciprocate the crossheads 36 and 37 with the pump rods and pistons connected thereto along the guides 35, 35, in opposite directions.

Intermediate the ends of the crossheads there are bearing openings 45 therethrough which admit the guide rods 35, 35. At the center of each crosshead there is an en larged opening 46 centrally in line with the pump rods in which there is disposed a sleeve 47. The sleeve 47 is of such a size and arranged so that the piping, pump rods and pistons may be removed vertically there through without removing the crosshead.

On the opposite ends of the frame members 10 and 11 there are lugs 48, 49, each lug having an opening therethrough to accommodate the reduced and threaded end of brace rods 50. The brace rods are bolted to the said lugs and extend upwardly and terminate near the upper ends of the guide rods 35, 35, inclining toward the same. The

' upper ends of the guide rods and brace rods are reduced and threaded and receive a plate 51 which has holes therein to fit over the reduced ends of the said guide rods and brace rods so that the same may be bolted to these rods and rigidly connect them together. The

. plate 51 has a recess 52 in the side thereof so that piping and rods may be removed past the same without necessitating the removal of the plate.

From the foregoing description the opera tion of the device will be apparent. It will be seen that I have provided an improved pumping jack of an entirely new design removing the jack from its foundation. By

arranging the device so that the piston rods extend upwardly from the gear wheels or operating mechanism the foregoing arrangement is possible.

It will be apparent that various changes may be made in the construction without departing from the spirit of the invention and therefore it is not desired that the invention be limited to the exact details as shown and described.

Having described the invention what is claimed is 1. In a pumping ack, the combination of three parallel shafts, a pair of meshing gears supported on two of said shafts, a pinion on the thirdshaft meshing with one of said pair of gears, driving means for said third shaft, guiding means extending above the shafts, two cross-heads substantially equal in size and located'above the shafts and gears and movable along said guiding means, rods connecting with ends of the cross heads and the meshing gears, and a pump rod attached to each cross head and extending below the shafts and gears.

2. In a pumping jack, the combination of a base frame comprising spaced vertical side members and a bottom member connected with said side members, three parallel shafts supported at the upper edges of the side members, meshing gears supported in pairs at the outer ends of two of said shafts outside of said side members, a pinion mounted at each end of the third shaft and meshing with one of each of said pairs of gears, driving means for said third shaft extending between said side members, guiding means rising from said base frame, cross heads movable along said guiding means, connecting rods extending between the cross heads and the gears and disposed outside of said guiding means, and a pump rod attached to each cross head.

3. In a pumping jack, the combination of a base frame comprising spaced vertically arranged side members and a bottom member connected to said side members and having an opening extending therethrough, two shafts supported at the upper edges of the side members and extending beyond said side members, a gear mounted at the outer end of each of said shafts, the corresponding gears on the same side of the frame meshing with one another, a third shaft supported at the upper edge of the side members and parallel to the before mentioned shafts, a pinion mounted at each end of the third shaft and meshing with one of each of said pairs of meshing gears, driving means mounted on said third shaft and extending between said side members, guiding rods rising vertically from the frame, cross heads slidable along said guiding rod, a pair of pitmen connected to the opposite ends of each cross head and to the gears mounted at the opposite ends of the same shaft, and concentrically arranged pump rods connected 4. In a pumping jack, the combination of a base frame comprising spaced vertically arranged side members and a bottom member connected with said side members, shafts supported at the upper. edges of said side members, a gear mounted at each end'of one of said shafts, a pinion mounted at each end of the other of the shafts, said.

pinions meshing With said gears, driving means connected to the pinion supporting shaft and extending between said side members, guiding means rising Vertically in the base frame, a cross head movable along said guiding means, rods connecting said gears With the cross head to operate thesame, a

piston carried by said pump rod, a cylinder for said piston disposed in line With the pump rod, means extending from the side members of the frame to the upper .end of said guiding means to brace the latter, and a plate connecting said bracing means and guiding means at their upper ends and provided With an opening to permit the Withdrawal of the pump rod, piston,vand cylinder Without dissembling the jack.

In testimony whereof I afliX my signature in presence of tWo Witnesses.

' pump rod depending from said cross head,

WILLIAM WINTERBORNEQ Witnesses: v

S. C. HINKLE, WM. C. PRICE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. I v 

